How many molecules are contained in 1.30

mol O2?
Answer in units of molec.

See you NO and NH3 problem above.

two

To find the number of molecules in a given amount of substance, you can use Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol.

To calculate the number of molecules in 1.30 mol of O2, you can multiply the moles of O2 by Avogadro's number:

Number of molecules = (1.30 mol O2) * (6.022 x 10^23 molec/mol)

Calculating this gives us:

Number of molecules = 7.8266 x 10^23 molec

Therefore, there are approximately 7.8266 x 10^23 molecules in 1.30 mol of O2.